EXP-00091: Exporting questionable statistics.

EXP-00091: Exporting questionable statistics.

发表于 2012 年 01 月 16 日 由 惜分飞

链接：http://www.xifenfei.com/2402.html

标题：EXP-00091: Exporting questionable statistics.

作者：惜分飞©版权所有[文章允许转载,但必须以链接方式注明源地址,否则追究法律责任.]

一.出现EXP-00091错误

[oracle@localhost tmp]$ exp "'/ as sysdba'" tables=testxuchao.TAB_XN_PY_DICT \
> file = /tmp/xifenfei .dmp log= /tmp/xifenfei .log

Export: Release 9.2.0.4.0 - Production on Mon Jan 16 16:02:37 2012

Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.

Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
Export done in US7ASCII character set and AL16UTF16 NCHAR character set
server uses ZHS16GBK character set (possible charset conversion)

About to export specified tables via Conventional Path ...
Current user changed to TESTXUCHAO
. . exporting table                 TAB_XN_PY_DICT      25433 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
Export terminated successfully with warnings.

当环境变量和数据库的不一致，在导出统计信息时候，会报EXP-00091错误。

二.查看NLS相关参数

[oracle@localhost tmp]$ echo $NLS_LANG
AMERICAN

SQL>  col value for a30
SQL>  select parameter,value from nls_database_parameters
   2  where parameter like '%CHARACTERSET%' ;

PARAMETER                      VALUE
------------------------------ ------------------------------
NLS_CHARACTERSET               AL32UTF8
NLS_NCHAR_CHARACTERSET         AL16UTF16

三.解决方法
1.设置NLS_LANG为NLS_CHARACTERSET

[oracle@localhost tmp] export NLS_LANG=AMERICAN_AMERICA.AL32UTF8
[oracle@localhost tmp]$ exp "'/ as sysdba'" tables=testxuchao.TAB_XN_PY_DICT \
> file = /tmp/xifenfei .dmp log= /tmp/xifenfei .log

Export: Release 9.2.0.4.0 - Production on Mon Jan 16 16:08:10 2012

Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.

Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set

About to export specified tables via Conventional Path ...
Current user changed to TESTXUCHAO
. . exporting table                 TAB_XN_PY_DICT      25433 rows exported
Export terminated successfully without warnings.

2.使用statistics=none

[oracle@localhost tmp]$ exp "'/ as sysdba'" tables=testxuchao.TAB_XN_PY_DICT \
> file = /tmp/xifenfei .dmp log= /tmp/xifenfei .log  statistics=none

Export: Release 9.2.0.4.0 - Production on Mon Jan 16 16:08:53 2012

Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.

Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
Export done in US7ASCII character set and AL16UTF16 NCHAR character set
server uses ZHS16GBK character set (possible charset conversion)

About to export specified tables via Conventional Path ...
Current user changed to TESTXUCHAO
. . exporting table                 TAB_XN_PY_DICT      25433 rows exported
Export terminated successfully without warnings.